Feeding device.



H. T. HAINES.

FEEDING DEVICE. APPLICATION FILED JUNE 9, 1911.

Patented 1160.5, 1911.,

Ill

mv NTOR COLUMBIA PLANOGRAPH 60., WASHINGTON. Dv c.

HENRY T. HAnvEs; 0E NEWARK, NEW JERSEY.

FEEDING nEvIoE.

Patented Dec. 5, 1911.

Serial No. 632,183.

1,010,752. Specification of Letters Patent.

Application. filed June 9, 1911.

port. the guides of the roller removed. Fig. 5 is a vertical section through the sectional roller showingseveralof the sections, and Fig. 6 is a section on line 6, 6, in Fig.4.

This system of can beemployed in a number of difierent types of machines and for different purposes, but I prefer to use it in leather-splitting machines and have illustrated the feeding means as applied machine, the splitting being done by a band knife 10 rotating on pulleys 11 on each end of the machine, only one of which however is shown, the knife thus passing transversely To all whom it may concern:

Be it known that I. HENRY T. HAINES, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Feeding Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.

This invention relates to a means for feeding material that is not of even thickness so as to insure the feeding of the material and to also insure the gripping of all partsof the material so as to make the feeding positive, and is particularly adapted to provide feed-rolls for machines in which material is supplied to knives or similar cutting means, such as the feeding of hides in leather-splitting machines.

The invention consists in feed-rolls, one of which is a sectional-roll in which the sections are placed side by side, each section having means for yieldingly holding it against the opposite roll, each yielding section thus giving way to a protuberance or an excessive thickness in the material being fed through the roll.

The invention also consists in means for positively driving all the yielding rollersections in unison, irrespective of their dis-. tance from the opposite roll, thus insuring a steady and positive feeding of the material. The invention consists also in means for withdrawing simultaneously all the yielding sections so that they are withdrawn as one roller from the opposite roll.

The invention is further designed to provide the rolls with backing-up elements which hold the rolls in alinement and particularly prevent the backwardlbending of the roll opposed to the sectional-roll, said opposed roll being a solid or rigid roll.

The invention is illustrated in the accompanying drawing, in which- Figure 1 is a section through apart of a leather-splitting machine showing the installation of the rolls. Fig. 2 is a front view ofa part of the machine shown in section in Fig. 1. Fig. 3 is a section showing the fixed-roll and one of the sections making up the sectional-roller with its yielding supleather. A table 12 is provided as a feeding table, and the rear table 13 over which the knife passes is provided with a fender 14: which feeds the leather upward after it is split. The side-frames 15 support a beam 16 in which are arranged the rods 17 with the nuts 18 on their screwthreaded parts, the nuts 18 bearing on a top flange 19 of the beam 16 so as to force the bearings 20 of the backing-up roll 21 downward, this backing-up roll holding the fixedroll 22 against upward movement, as will be hereinafter described. The fixed-roll 22 is provided with a gear 23 which meshes with a gear 24: on the shaft 25, which shaft 25 drives a sectional-roller as will be hereinafter described, these gears 23 and 24 insuring the simultaneous rotation of the two rolls, the rolls receiving their power in any manner. WVhen leather is fed between the rolls and engaged by the knife 10, under certain conditions heavy strain is placed on the fixed-roll 22, giving it a tendency to ride vertically and backward from the knife 10. The backing-up roll 21 is a well known feature in splitting-machines at present, and prevents the upward rise of the fixed-roll and is not considered a part of this invention, but a new feature is the means for preventing the fixed-roll 22 from backing away from the knife. This consists of a bracket 26 which is adjustable by means of the stud 27 and the nut 28 in the slot 29 of the lower flange 30 of the beam 16. The bracket is provided with a pressure-plate 31 which is hollowed or recessed on its back face to receive the roll 22 and is adjustable toward and from the roll by means of the screw 32 which passes through the bracket 26 as will be clearly seen from Fig. 1. This screw 32 Fig. t is a front view of Fig. 3 with rollers or feeding means to a leather-splitting i to the direction of feed of the material or i of the machine is provided with a head so that it can be turned by a tool and is thereby adjustable toward the roll 22 to hold it in its place and to resist any movement away from the knife 5 and also adjust itself to any tilting of the roll 22 when the two ends of the roll are forced downward unequally by the nuts 18, as will be evident. The adjustment of the fixed-roll 22 is permitted by reason of the 10 slots 33 in the side-frames 15. The yielding roll is arranged opposite the fixed-roll 22, and consists of a series of rollers, thereby forming a sectional-roll, these rollers being arranged side by side. These sectionalrollers 34 abut, and each roller is provided with oppositely arranged grooves 35.

The shaft 25 passes through the rollers which are hollow as at 36, said shaft being provided with perforations 37 within each roller. A pin 38 passes through each perforation in the shaft and into the grooves 35 in the roller, the pins 38 thereby providing for the transmission of power from the shaft 25 to its roller, thus insuring the simul- 25 taneous rotation of all the rollers. The grooves 35 are wider than the pins 38 so that the rollers can swing on the pins when the pins are approximately horizontal. Side walls 39 and 40 act as guides for the rollers 34 and hold them in registry with the fixed-roll 22. Under each roller 34 is a block 41 which supports the roller, being preferably provided with small wheels 42 to minimize the friction between each block 41 and its roller 34. Each block is yieldingly supported so that if necessary its roller 34 can retreat from the fixed-roll 22. The preferred means of supporting the block 41 is by a spring 43 which abuts on the bar 44 on one end, and on the block 41 on the other end, the spring encircling a rod 45 which is preferably made hollow and passes through the bar 44. It will thus be seen that when a hide 46, as shown in Fig. 5, 45 passes over the yielding roll, when any thickened portion as 47 engages the roller by which it is being fed, the roller can yield as does the center roller in Fig. 5. If the pins 38 are vertical the yielding is possible on account of the pin sliding through the perforation 37 in the shaft 25. If the pins at the moment the yielding is to take place are horizontal the yielding is permitted by the widened groove 35 permitting one side of the roller to roll down so that no matter what position the pins 38 are in, the roller can assume a position eccentric to the shaft 25.

To provide for the adjustment of pressure on each individual roll, and to also permitthe simultaneous withdrawal from the fixedroll, I provide each rod 45 with an extension 48, preferably in the shape of a screw so that the extension is adjustable, the screw 48 having a head 49 on the end thereof and abutting against a pin 50 which can be screw-threaded if necessary, or can be driven in the bar 44 passing through a slot 51 in the rod 45. If the maximum pressure of the spring 43 is not to be used on any of the rollers it can be adjusted by the screw 48, being screwed against the pin 50 to limit the upward movement of its roller. The ad justment of the springs of the sectionalrollers causes the sectional-rollers to be 5 raised or lowered so as to vary the pressure between the fixed-roll and the sectional-roll to regulate the machine for the reception of thin or thick material as will be evident. A shaft 52 is installed alongside of the ex- 0 tensions 48, and arms 53 are arranged on the shaft 52, each lever engaging the head 49 handle is operated all the arms 53 are swung, 5 thereby withdrawing all the rods 45 and permitting each roller 34 to descend, whereby space is provided between the rollers and the fixed-roll 22. It will be noted that the screw 49 provides for the adjustment of each individual roll so that the pressure along the whole .roll will be alike.

The sectional-roll with its yielding rolladapted to give way to an excessive thicle ness, particularly hides and skins in leather- 10C splitting machines.

aving thus described my invention, what claim is r l. A feeding means comprising a fixedroll, a series of rollers adapted to cooperate with the fixed-roll to feed material, the rollers being chambered and each roller being provided with oppositely arranged grooves,

a shaft passing through the rollers, the shaft being perforated with at least one perforation Within each roller, pins sliding in the means for yieldingly forcing each roller toward the fixed-roll.

2. A feeding means comprising a fixedroll, a series of rollers adapted to cotiperate with the fixed-roll to feed material, the rollers being chambered and each roller being provided with oppositely arranged wide grooves, a shaft passing through the rollers, the shaft being perforated with at least one perforation within each roller, pins sliding in the perforations, each pin having its projecting ends engaging the grooves in a roller, and spring means bearing on each roller to force it toward the fixed-roll.

3. A feeding means comprising a fixedroll, a series of rollers adapted to cotiperate with the fixed-roll to feed material, the rollers being roll, a series of rollers arranged side by side and adapted to cooperate with the fixed-roll to feed material, the rollers being chambered, a driving-shaft passing through the chambered rollers, walls flanking the rollers, a block under each roller, a bar, a rod extending from each block and passing through the bar, a spring for normally forcing the block and its roller toward the fixed-roll, and means engaging the end of each rod for simultaneously withdrawing all the blocks.

5. A feeding means comprising a fixedroll, a series of rollers arranged side by side and adapted to cooperate with the fixed-roll to feed material, the rollers being chambered, a driving-shaft passing through the chambered rollers, walls flanking the rollers, a block under each roller, a bar, a rod extending from each block and passing through the bar, a spring for normally forcing the block and its roller toward the fixed-roll, means engaging the end of each rod for simultaneously withdrawing all the blocks, an extension on each rod, a shaft, a set of arms on the shaft, each arm engaging the extension of a rod whereby they can all be simultaneously withdrawn, and means for rotating the shaft.

6. A feeding means comprising a fixedroll, a series of rollers arranged side by side and adapted to cooperate with the fixed-roll to feed material, the rollers being chambered, a driving-shaft passing through the chambered rollers, walls flanking the rollers, a block under each roller, a bar, a rod extending from each block and passing through the bar, a spring for normally forcing the block and its roller toward the fixed-roll, means engaging the end of each rod for simultaneously withdrawing all the blocks, a screw projecting from each rod and adjustable therein, each rod being slotted, pins in the bar, each pin passing through a slot in a rod and being engaged by the end of a screw, a shaft, a set of arms on the shaft, each arm being adapted to engage a screw for with- Copies of this patent may be obtained for five cents each, by addressing at least one each spring abutting on the bar drawing a rod, and means for turning the shaft.

7 In a feeding means, a roller, an element with which it is adapted to cooperate to feed material, the roller being chambered and provided with a wide groove on opposite sides of the chamber, a shaft smaller than the chamber and passing through it, the shaft having a transverse perforation therein, and a pin sliding in the perforation and having itsprojecting ends in the grooves of the roller.

8. In a feeding means, a roller, an element with which it is adapted to cooperate to feed material, the roller being chambered and provided with a wide groove on opposite sides of the chamber, a shaft smaller than the chamber and passing through it, the shaft having a transverse perforation therein, a pin sliding in the perforation and having its projecting ends in the groovesof the roller, and means for yieldingly forcing the roller toward the element with which it cooperates.

9. In a feeding means, a fixed-roll, a roll with which the fixed-roll cooperates to feed material, a support above the fixed-roll, means for forcing the fiXed-roll downward, a bracket on the support, a pressure-plate between the bracket and the fixed-roll, the pressure-plate being recessed to receive the surface of the roll, and a' screw in screwthreaded engagement with the bracket and bearing on the pressure-plate and acting as a pivot therefor whereby the pressure-plate is forced toward the fixed-roll and is held in tilting relation with the bracket. 10. A feeding means consisting of side walls, a fixed-roll above the side walls, a chambered roller between the side walls, and having grooves on opposite sides of the chamber, a shaft passing through the roller, the shaft having a transverse perforation, a pinin the perforation having its ends in the grooves of the roller, a block having friction wheels engaging the roller and the side walls, a bar, a rod extending from the block through the bar, and a spring encircling the rod and having its ends abutting on the bar and on the block. In testimony, that I claim the foregoing, I have hereunto set my hand this 7th day of June 1911.

HENRY T. HAINES.

the f Commissioner of Patents,

Washington, D. C. 

